0-4"/100mm Dial Caliper

The inch version of these calipers has a direct-read scale with 0.1” markings and a secondary micrometer-style scale that reads down to 0.001”! (Yeah, right…) Realistically, it’s maybe accurate to +/-0.010”. The metric version has a direct-read scale with 2mm markings and a secondary scale with 0.1mm graduations.”

Link